15. It can be seen from the passage that the expansion of America's elderly population ________.
A.
will provide good job opportunities in many areas
B.
will impose an unbearable burden on society
C.
may lead to nursing home abuse and age discrimination
D.
will create new fields of study in universities
(责任编辑：admin)有不懂可以加客服微信：vq800020900 咨询
